One of the most picturesque parts of the Vilnius University is the St. John's Church and its bell tower. The construction of the Gothic style church lasted for almost 40 years and was completed in 1426. In 1571 the church was transferred to the Order of Jesuits and became a part of the university complexes.
Besides masses, the Church of Sts. Johns has also witnessed student protests, theatre performances, and welcoming ceremonies for kings. In Soviet times, it was turned into a warehouse. Later, the University Museum was established there. Today St. John's is again a Roman Catholic church. It was visited by Pope John Paul II in 1993.
The bell tower of the church, which is 68 meters high, is among the highest buildings in the Old Town. The present facade was designed in the 18th century by the most prominent Vilnius Baroque architect, Jonas Kristupas Glaubicas (Johan Christoph Glaubitz).References:
The Petersberg Citadel is one of the largest extant early-modern citadels in Europe and covers the whole north-western part of the Erfurt city centre. It was built after 1665 on Petersberg hill and was in military use until 1963. It dates from a time when Erfurt was ruled by the Electors of Mainz and is a unique example of the European style of fortress construction. Beneath the citadel is an underground maze of passageways that can be visited on guided tours organised by Erfurt Tourist Office.
The citadel was originally built on the site of a medieval Benedictine Monastery and the earliest parts of the complex date from the 12th century. Erfurt has also been ruled by Sweden, Prussia, Napoleon, the German Empire, the Nazis, and post-World War II Soviet occupying forces, and it was part of the German Democratic Republic (East Germany). All of these regimes used Petersberg Citadel and had an influence on its development. The baroque fortress was in military use until 1963. Since German reunification in 1990, the citadel has undergone significant restoration and it is now open to the public as a historic site.